CONFIG_CPU_HAS_LLDSCD is not available for thedefaultarchitecture x86.
Result is shown for architecture mips
default or selected kernelversion does not have config value CONFIG_CPU_HAS_LLDSCD.
Result is shown for kernelversion 5.4.123
lld/scd Instructions available
configname: CONFIG_CPU_HAS_LLDSCD
Linux/MIPS Kernel Configuration
└─>CPU selection
└─>lld/scd Instructions available
In linux kernel since version 2.6.12
Say Y here if your CPU has the lld and scd instructions, the 64-bit
equivalents of ll and sc. Say Y here for better performance, N if
you don't know. You must say Y here for multiprocessor machines.
equivalents of ll and sc. Say Y here for better performance, N if
you don't know. You must say Y here for multiprocessor machines.